The Accidental Smallholder Forum

Livestock => Sheep => Topic started by: morri2 on November 12, 2010, 05:29:43 pm

Title: Rhubarb and sheep!
Post by: morri2 on November 12, 2010, 05:29:43 pm
I have just been to check on my ewe lambs and they've managed to squeeze themselves into my son's rhubarb patch (arghhh!!!). They, or I think probably 'it' as there is only one set of hoof marks, appears to have eaten some of the three plants in there, (it's a very small rhubarb plot!)  possibly a couple of almost dead leaves and a stick or two of rhubarb.  As I have heard rhubarb is poisonous to sheep I'm more than a little worried!  Does anyone know exactly HOW poisonous it is to sheep?  Is it fatal??
Title: Re: Rhubarb and sheep!
Post by: woollyval on November 12, 2010, 07:35:12 pm
Urm.....think you will have to play the wait and see game....the toxin is oxalic acid if that helps?
Title: Re: Rhubarb and sheep!
Post by: Anke on November 12, 2010, 07:47:49 pm
I don't think the stalks are poisonous, its the leaves that are. I wouldn't think that a once off nibble of a few leaves will make them disastrously ill, but just watch and maybe give a batch of hay (if s/he is inside) to dilute any effect?

I don't know if the almost dead leaves are more poisonous than the fresh green ones - all of mine have now disappeared...
Title: Re: Rhubarb and sheep!
Post by: shetlandpaul on November 12, 2010, 10:21:55 pm
the stems also contain the poison. its what gives its bite just not as much. the leaves should have been very wilted by now so hopefully ok. however a few leaves will kill if fresh.
Title: Re: Rhubarb and sheep!
Post by: morri2 on November 13, 2010, 09:12:01 am
Thanks for the replies.  All eight lambs fit and well this morning. Looks like they've not had enough to cause any serious problems.  Job for today - sort out the gate to the rhubarb patch !!!! ;D
Title: Re: Rhubarb and sheep!
Post by: faith0504 on November 13, 2010, 10:31:08 am
glad they are all ok, good luck with the gate fixing
Title: Re: Rhubarb and sheep!
Post by: Anke on November 14, 2010, 11:00:47 am
If the rhubarb stem also contains poison - how come we can eat it? I eat it raw as well, so far still here to tell the tale...
Title: Re: Rhubarb and sheep!
Post by: jinglejoys on November 14, 2010, 11:54:51 am
You can clean brass with it....hate to think what it does to our insides! ;D
Title: Re: Rhubarb and sheep!
Post by: plumseverywhere on November 14, 2010, 01:02:05 pm
seriously? which bit do you use to clean the brass?
Title: Re: Rhubarb and sheep!
Post by: waterhouse on November 14, 2010, 05:56:42 pm
Rhubarb contains oxalic acid which is one of the simpler organic acids but it packs a considerably greater punch than things like acetic acid.  My mother used to use it for removing bath scale and I also believe it's good treatment for rust on ironwork.

The leaves contain a much higher concentration than the stems, so what is merely part of the flavour (and produces the temporary feeling of furry teeth) in the stems is highly poisonous in the leaves.  I bet it's very unpalatable so unlikely to be consumed by accident.

Lots of things are good in small amounts and not in larger quantities.  Meadowsweet makes a lovely relaxing cup of tea, probably because it's a natural source of aspirin.  The things you really need to watch are some of the alkaloids which build up in the liver and don't get excreted.  This is why ragwort is bad news for horses.